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Item _em_map_resolution.3d_reconstruction_resolution_method

Description

     Method used to determine the resolution of the map. The first of the 
        two fundamentally different methods is one that relies on dividing the 
        the data into two halves and then calculating two independent
        reconstructions which are then compared by Fourier Shell Correlation
        (FSC) or differential phase residual (DPR). The second different method
        of assessing resolution is more relevant where there is a combination of EM
        and X-ray data. The similarity between the EM density and the electron
        density corresponding to the atomic structure can be used to determine
        the resolution of the EM map.

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